Great article. As it says, it's a translation into Javascript of the Java code from the Android calculator, and the article it references ("Small-data computing

Great article. As it says, it's a translation into Javascript of the Java code from the Android calculator, and the article it references ("Small-data computing: correct calculator arithmetic" by Hans-J. Boehm) is really an awesome read: available at https://cacm.acm.org/magazines/2017/8/219594-small-data-computing/fulltext https://cacm.acm.org/magazines/2017/8/219594-small-data-comp... or https://dl.acm.org/doi/10.1145/2911981 https://dl.acm.org/doi/10.1145/2911981 and PDF at https://dl.acm.org/doi/pdf/10.1145/2911981 https://dl.acm.org/doi/pdf/10.1145/2911981 — the Android calculator is a hidden gem of an application.